1,3-Butanediol, polymerwith 2,4-diisocyanato-1-methylbenzene,2-ethyl-2-(hydroxymethyl)-1,3-propanediol and a-hydro-w-hydroxypoly[oxy(methyl-1,2-ethanediyl)], Me Et ketone oxime-blocked
1,3-Butanediol, polymerwith 2,4-diisocyanato-1-methylbenzene,2-ethyl-2-(hydroxymethyl)-1,3-propanediol and a-hydro-w-hydroxypoly[oxy(methyl-1,2-ethanediyl)], Me Et ketone oxime-blocked